LMK03318 Datasheet, PDF (1/136 Pages) Texas Instruments – Ultra-Low-Noise Jitter Clock Generator Family

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LMK03318
SNAS669A – SEPTEMBER 2015 – REVISED DECEMBER 2015
LMK03318 Ultra-Low-Noise Jitter Clock Generator Family with One PLL, Eight Outputs,
Integrated EEPROM
1 Features
•1 Ultra-Low Noise, High Performance
– Jitter: 100-fs RMS Typical, F_OUT > 100 MHz
– PSRR: –70 dBc, Robust Supply Noise
Immunity
• Flexible Device Options
– Up to 8 AC-LVPECL, AC-LVDS, AC-CML,
HCSL or LVCMOS Outputs or Any
Combination
– Pin Mode, I²C Mode, EEPROM Mode
– 71-Pin Selectable Pre-programmed Default
Start-up Options
• Dual Inputs with Automatic or Manual Selection
– Crystal Input: 10 to 52 MHz
– External Input: 1 to 300 MHz
• Frequency Margining Options
– Fine frequency Margining Using Low-Cost
Pullable Crystal Reference
– Glitchless Coarse Frequency Margining (%)
Using Output Dividers
• Other Features
– Supply: 3.3 V Core, 1.8 V, 2.5 V, or 3.3 V
Output Supply
– Industrial Temperature Range (–40ºC to 85ºC)
2 Applications
• Switches and Routers
• Network and Telecom Line Cards
• Servers and Storage Systems
• Wireless Base Station
3 Description
The LMK03318 is an ultra-low-noise PLLatinum^TM
clock generator with one fractional-N frequency
synthesizer with integrated VCO, flexible clock
distribution/fanout, and pin-selectable configuration
states stored in on-chip EEPROM. The device can
generate multiple clocks for various multi-gigabit
serial interfaces and digital devices, thus reducing
BOM cost and board area and improving reliability by
replacing multiple oscillators and clock distribution
devices. The ultra-low jitter reduces bit-error rate
(BER) in high-speed serial links.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LMK03318
WQFN (48)
7.00 mm × 7.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
LMK03318 Simplified Block Diagram
PLL
2
Power
Conditioning
Output
8
Output
8
Dividers
Buffers
LMK03318
Ultra-high performance clock generator
Interface
I²C/ROM/
EEPROM
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.